In general, for
In order to meter the subject reflectivity, the camera fist fires one or more small flashes
Reference No. 4 “External Auto” (External Automatic Flash Exposure Adjustment)
A function where a strobe has a light adjustment sensor mounted in the strobe itself, whereby the light adjustment sensor adjusts flash output based on subject reflectivity, for “correct” exposure. For strobes with this function, by setting the strobe’s Aperture Value to match that of the camera system, at the same time as the camera’s internal strobe fires its main flash, the external strobe’s light adjustment sensor measures subject reflectivity in real time, and automatically adjusts for correct strobe output.
Reference No. 5 “Master Strobe” and “Slave Strobe”“Master” and “Slave” are terms corresponding to “which strobe is the controlling device” and “which strobe is being controlled”.
When using two strobes (including the case of the camera’s internal strobe and the
However, it is possible to connect only one of the strobes directly to the camera/housing, with the other strobe connected to the first strobe. The strobe connected to the camera/housing (Master) receives control signals directly from the camera and flashes. At that time, the other (Slave) strobe sees the master strobe’s flash, and at that signal, reproduces the same flash duration as the master strobe. “Master” and “Slave” terms are used when the two strobes have such definite master/slave relationship.
For the purpose of compatibility with the
By proactively utilizing the fundamental light control theory of digital cameras using
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Version 1. October 4, 2003 |
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Copyright 2002, 2003 by INON America, Inc. | All rights reserved. |